不是缺铅，是缺900度的冶炼、合金和制模技术～～那时还有锂呢，咋不做电池呢，哈哈。

来源: tennisfan87 于 2023-08-15 10:23:55 [旧帖] [给我悄悄话] 本文已被阅读：次

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